(To Prospectus dated September 5, 2025)
![[MISSING IMAGE: lg_solidpower-4c.jpg]](https://www.sec.gov/Archives/edgar/data/0001844862/000110465925087900/lg_solidpower-4c.jpg)
Common Stock
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Assumed offering price per share
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| | | | | | | | | $ | 3.93 | | |
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Net tangible book value per share of as June 30, 2025
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| | | $ | 2.04 | | | | | | | | |
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Increase in net tangible book value per share attributable to this offering
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| | | $ | 0.31 | | | | | | | | |
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As-adjusted net tangible book value per share as of June 30, 2025, after giving effect to this
offering |
| | | | | | | | | $ | 2.34 | | |
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Dilution in net tangible book value per share to new investors
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| | | | | | | | | $ | 1.59 | | |
Attention: Corporate Secretary
486 S. Pierce Ave., Suite E
Louisville, CO 80027
(303) 219-0720
![[MISSING IMAGE: lg_solidpower-4c.jpg]](https://www.sec.gov/Archives/edgar/data/0001844862/000110465925087900/lg_solidpower-4c.jpg)
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Attention: Corporate Secretary
486 S. Pierce Ave., Suite E
Louisville, CO 80027
(303) 219-0720
![[MISSING IMAGE: lg_solidpower-4c.jpg]](https://www.sec.gov/Archives/edgar/data/0001844862/000110465925087900/lg_solidpower-4c.jpg)